Medicinal liquor for strengthening tendons and bones: 50 grams of Rhizoma Drynariae, 50 grams of Fructus Psoraleae, 50 grams of Eucommiae Cortex, 50 grams of Achyranthes bidentata, 50 grams of Lycium barbarum, 50 grams of black beans, 20 pieces of walnut kernel, 20 pieces of jujube and 4 liters of Chinese liquor. Stir-fry soybeans, grind them into coarse powder with other medicines, break the jujubes, put them into gauze bags, tie their mouths, soak them in Chinese liquor for two weeks, and drink them at noon and half an hour after meals, each time 10- 15g.